Harvard's CompSci Intro Course Boasts Record-Breaking Enrollment
My son took the course last year as a senior in high school via iTunesU.
It's also available on EdX.
Heck, I took it way back thirty-odd years ago. :-)
Also, here's a link to the original article in the Harvard Crimson:
Ask Slashdot: Good Technology Conferences To Attend?
In chronological order looking forward:
MacTech Boot Camps - http://www.mactech.com/bootcam...
Small, local, inexpensive. Check to see if there's one close to you.
MacTech Conference - http://www.mactech.com/confere...
Larger, both sysadmin and developer tracks
MacIT - http://www.macitconf.com/
Larger, multiple tracks and levels of knowledge
WWDC - https://developer.apple.com/ww...
The granddaddy of them all, but next to impossible to get into these days. Mostly developer focused. May not be useful if you don't already have a deep knowledge base.
MacAdmins - http://macadmins.psu.edu/
The most education-focused of the conferences. Very knowledgeable presenters.
FWIW, I've been a presenter at MacTech Boot Camps, MacIT, and WWDC.
After a User Dies, Apple Warns Against Counterfeit Chargers
See the commentary at the top of the page from this link:
Ask Slashdot: Rescuing a PC That's Been Hit By Scammers?
Lots of good advice so far, but one more item -- since your father has turned sysadmin tasks over to you, once you wipe and re-install, set up his account on the computer so that it is a restricted user account, not an admin account. If he isn't doing sysadmin tasks then he doesn't need the privs and this limits the amount of damage that a scammer can do to the computer. (Although getting his SSN and other info is still really bad.)
Ask Slashdot: Managing Encrypted Android Devices In State and Local Gov't?
I'm a former Apple engineer, current independent consultant, so I'm not going to address the Android side. That's a lot more complicated -- I'll stick with talking about the iOS info that I know about.
That said, wow, there's a lot of snarky comments but not a lot of information posted.
iOS has full-device hardware encryption built-in on the iPhone 3GS and later, activated as soon as you set up a passcode. This top-level encryption layer is for quick device wipes, not for data protection. Each user data file is then encrypted on top of that using its own unique key, then set into a protection class by the app developer:
- Complete Protection - decrypted only when the device is unlocked; file key is removed from memory when the device is locked.
- Protected Unless Open - decrypted when the device is unlocked; if file is open when the device locks, the file stays open/decrypted.
- Protected Until First User Authentication - decrypted on first unlock, stays decrypted until reboot
- No Protection - file system encryption only; no per-file encryption key
Apple has really been on developers cases to tighten down the data protection classes for their apps on iOS.
In addition, iOS has a huge number of remote management options. Apple provides a basic management tool called Profile Manager in Lion Server, and there are third-party Mobile Device Managers (MDMs) that take the basics and go even further. You can force complex passcodes, pre-configure e-mail accounts, restrict usage of features, and so on. The enterpriseios.com site has a pretty complete listing.
One of the cool things about using iOS MDM is that all of the configuration profiles are tied to the management profile that gets installed when the device is first enrolled with the MDM. If you're in a BYOD situation and a user leaves on bad terms, the IT department can retract the management profile, which automatically retracts all of the other configuration profiles. This will delete corporate e-mail accounts, remove in-house apps (and their data!), take away VPN and 802.1X access, and so on, without erasing the person's device entirely. All of the pictures the person took are still there, not blown away as they would be after a complete device wipe.
Anyway, a few links that may help you out:
http://consultants.apple.com/index.php - look for consultants with the Mobility specialization
https://help.apple.com/advancedserveradmin/mac/10.7/ - go into "Manage Users" --> "Profile Manager" on the right
Hope this helps.
Best Software For Putting Lectures Online?
This is exactly the design scenario for Podcast Publisher and Podcast Library.
While it can take advantage of a whole cluster of servers, it can also run (albeit more slowly) on a single Core i7 Mini Server. For more detailed docs, see:
It's in use at lots of universities and some K-12 schools.
Hope this helps.
Certificate Blunders May Mean the End For DigiNotar
This is just going through the motions. DigiNotar has been dead since August 30, when Google, Mozilla, and Microsoft all revoked trust in their certificates. Anyone with at least two brain cells (which seems to exclude a large number of managers, unfortunately) could see the writing on the wall. No one would ever buy a new DigiNotar certificate, since it would always pop up a scary warning to the user in a web browser. Why bother with buying a certificate from DigiNotar and dealing with the resulting end-user support issues, when you can buy from someone else and not have to deal with the problem?
More interesting to me is what will happen to DigiNotar's corporate parent, Vasco Data Security? The purchase of DigiNotar is relatively recent (January 10, 2011), so it's not clear how much influence Vasco's management had over DigiNotar's operations. At the very least, Vasco is going to need to pay for an audit of its own systems to reassure its direct customers.
Security Researchers Crack APCO P25 Encryption
APCO 25 doesn't seem to be very well thought through. Easily jammed at multiple levels and vulnerable in many ways.
Apple Criticized For Not Blocking Stolen Certs
I have detailed info and tools on my website at
The short story is that it is possible to protect yourself, but it requires deleting the DigiNotar root cert(s), then revoking trust on the two roots plus four intermediates.
Dutch Government Revokes Diginotar Certificates
Apple is behind the curve on this, almost certainly due to a bug in the handling of Extended Validation certificates that needs to be fixed. Until then, I have info and tools on my web page to help users with the problem.
Ask Slashdot: Overcoming Convention Hall Wi-Fi Interference?
"...announce on the loud speaker in a polite English accent..."
FYI, this will not work. Steve Jobs does not have an English accent.
TN BlueCross Encrypts All Data After 57 Disks Stolen
$6 million is pocket change to a company that has $5.2 billion in annual revenue. However, the true cost is really higher, as encrypting everything means that things like disk corruption are no longer repairable, lost passwords can't be reset without losing data, and the like. It'd be interesting to see just what the ongoing costs are.
That said, I would like to compliment Tennessee BC/BS for doing the right thing, in spite of it costing money.
PlanetLab Creates a More Advanced Sudo
Does no one remember 2007? Bob Watson presented a paper on exploiting concurrency to break all kinds of things like systrace back then, complete with example code. Vsys is the same kind of thing -- it has processes executing in an outside space where you can have a race condition and force the parameters to change after the clearance check but before it actually does the work. See:
Cheap GPUs Rendering Strong Passwords Useless
consistently (a) remember a long password and (b) type it without a failure at least 50% of the time, is in the single digits.
This myth needs to end. Most people can memorize phrases hundreds of words long:
You missed the second part -- TYPE them consistently enough that they can get in without getting frustrated. I have no doubt that a large percentage of the general population can memorize long, complex passages at the word level. The number that can get them consistently right at the character level is much lower. The number that can get them consistently right at the character level when they are required to change the phrase every six months drops to near zero.
Cheap GPUs Rendering Strong Passwords Useless
What you're missing is that the percentage of the general population that can consistently (a) remember a long password and (b) type it without a failure at least 50% of the time, is in the single digits. Remember, general population, not geeks.
I've expressed the opinion for several years now that password authentication is broken, and that we need to move to two-factor authentication schemes ASAP.
Epsilon Data Breach Bigger Than Just Kroger Customers' Data
Text of e-mail from Disney this morning:
We have been informed by one of our email service providers, Epsilon,
that your email address was exposed by an unauthorized entry into that
provider's computer system. We use our email service providers to
help us manage the large number of email communications with our
guests. Our email service providers send emails on our behalf to
guests who have chosen to receive email communications from us.
We regret that this incident has occurred and any inconvenience this
incident may cause you. We take your privacy very seriously, and we
will continue to work diligently to protect your personal information.
We want to assure you that your email address was the only personal
information we have regarding you that was compromised in this
As a result of this incident, it is possible that you may receive spam
email messages, emails that contain links containing computer viruses
or other types of computer malware, or emails that seek to deceive you
into providing personal or credit card information. As a result, you
should be extremely cautious before opening links or attachments from
unknown third parties or providing a credit card number or other
sensitive information in response to any email.
If you have any questions regarding this incident, please contact us
at (407) 560-2547 during the hours of 9:00 am to 7:00 pm (Eastern Time)
Monday through Friday, and 9:00 am through 5:00 pm (Eastern Time)
Saturday and Sunday.
Database of Private SSL Keys Published
Apple ran into something similar a long time ago for Mac OS X Server. The servermgrd daemon uses a self-signed SSL cert by default to secure communications with remote management tools. About four or five versions back the certificate was identical across all installations because it was contained in the installer package. Someone had to go down and show them that you could read all of the traffic by using sslsniff and the private key from your own copy of the installer. They changed to an individual, automatically generated certificate shortly thereafter.
How Apple Had a Spectacular Year
HEY YOU DISGUSTING PIECE OF *(&^*^&%&!!!!$#$#!! I CAN'T BELIEVE YOU WOULD HOLD THAT KIND OF RIDICULOUSLY IGNORANT AND BIASED OPINION IN THE FACE OF MY OWN MORAL RECTITUDE AND OBVIOUS SUPERIOR KNOWLEDGE. YOU SHOULD BOW DOWN BEFORE ME THAT I AM DEIGNING TO RESPOND TO YOUR POST!!!!
Happy now? ;-D;-D;-D;-D;-D;-D;-D;-D;-D;-D;-D;-D;-D;-D
random text to get by the lameness filter.
9. Religious conditions were similar in Java but politically there was
this difference, that there was no one continuous and paramount kingdom.
A considerable number of Hindus must have settled in the island to
produce such an effect on its language and architecture but the rulers
of the states known to us were hinduized Javanese rather than true
Hindus and the language of literature and of most inscriptions was Old
Javanese, not Sanskrit, though most of the works written in it were
translations or adaptations of Sanskrit originals. As in Camboja,
ivaism and Buddhism both flourished without mutual hostility and there
was less difference in the status of the two creeds.
In all these countries religion seems to have been connected with
politics more closely than in India. The chief shrine was a national
cathedral, the living king was semi-divine and dead kings were
represented by statues bearing the attributes of their favourite gods.
6. _New Forms of Buddhism_
In the three or four centuries following Asoka a surprising change came
over Indian Buddhism, but though the facts are clear it is hard to
connect them with dates and persons. But the change was clearly
posterior to Asoka for though his edicts show a spirit of wide charity
it is not crystallized in the form of certain doctrines which
subsequently became prominent.
The first of these holds up as the moral ideal not personal perfection
or individual salvation but the happiness of all living creatures. The
good man who strives for this should boldly aspire to become a Buddha in
some future birth and such aspirants are called Bodhisattvas. Secondly
Buddhas and some Bodhisattvas come to be considered as supernatural
beings and practically deities. The human life of Gotama, though not
denied, is regarded as the manifestation of a cosmic force which also
reveals itself in countless other Buddhas who are not merely his
predecessors or destined successors but the rulers of paradises in other
worlds. Faith in a Buddha, especially in Amitâbha, can secure rebirth in
his paradise. The great Bodhisattvas, such as Avalokita and Mañjurî,
are splendid angels of mercy and knowledge who are theoretically
distinguished from Buddhas because they have indefinitely postponed
their entry into nirvana in order to alleviate the sufferings of the
world. These new tenets are accompanied by a remarkable development of
art and of idealist metaphysics.
How Apple Had a Spectacular Year
Just a quick comment from a former Apple employee; most people are familiar with the old saw, "Perfect is the enemy of good enough." I.e., instead of trying to get something perfect, you should get it good enough and then ship it. Within Apple the perspective is slightly different. There, it's more along the lines of, "Good enough is the enemy of great." I.e., good enough isn't acceptable -- for an Apple-branded product we're going to look for the next level of polish and care that differentiates our stuff from everybody else's.
I think this comes from the fusion of NeXT and Apple engineers. Most people recognize that NeXT brought a heckuva foundation for Apple's next generation operating system to the table in 1997. However, few people recognize what Apple brought to the table -- an engineering culture that regards rough edges as anathema. There was plenty of NeXT software, but much of it was very rough; it wasn't easy to pick up for the new user, was missing essential features, crashed often, or all of the above. This was a direct consequence of the fact that Foundation and AppKit allowed you to create apps quickly and easily, but then as a software developer you still have to trap errors, check for corner cases, add documentation, tweak the UI design so that common tasks are easy to accomplish, etc. This can easily take three to four times as long or more as standing up the initial core functionality. Most NeXT apps never went through this stage and so they lacked the polish for mass market users. Once the NeXT technology went through the polishing process (and it took four years before the first consumer release, really five years and 10.2 Jaguar before it was truly ready for my mom!), the new OS was a completely different animal from OpenStep 4.2 -- much more polished and suitable for mass-market consumers.
AU Government To Build "Unhackable" Netbooks
What education should be about is understanding, if you just train someone in one version of s/ware many just adopt a point and click approach with little understanding of what they are doing. You need different sorts of s/ware to make them think. Schools should use a mixture of: MS, Mac & Linux PCs.
I think it's a little more subtle than that. 90% of the kids using these things will go on to be standard users in life, treating computers as one tool among many. Have you seen how regular users treat computers? Most of them are uncomfortable using a new app without formal training -- even today's twentysomethings. Even on a Mac (yes, I'm a Mac guy).
What concerns me more are the other 10%, who will become power users, sysadmins, and developers. If all they know is MS and their pitifully low standards for stability, security, and usability, I am scared of the outcome for the next generation of software; not for the 0.1% of brilliant developers whom you can't keep down, but for the rest who grind out code in obscurity producing internal-use-only enterprise apps and vertical markets apps.
I think of a kid in my son's Boy Scout troop who had no idea that "SQL" had a broader meaning than a Microsoft product named "SQL Server". He's a brilliant kid and will go far, but he needed to have his horizons broadened quite a bit. I don't fault him -- rather, I fault those who mentored him and didn't show him the alternatives.